18657980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{84809}}^1$

素因数の和:84829

約数の個数: 24

約数和(自身を含む): 42744240

約数和(自身を除く): 24086260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 84809, 169618, 339236, 424045, 848090, 932899, 1696180, 1865798, 3731596, 4664495, 9328990, 18657980]

約数ペア:

[(1, 18657980), (2, 9328990), (4, 4664495), (5, 3731596), (10, 1865798), (11, 1696180), (20, 932899), (22, 848090), (44, 424045), (55, 339236), (110, 169618), (220, 84809)]